Stable Lons quick check. Which of the following defines the atomic number of an atom?

Answer 1

The atomic number of an atom is defined by the number of protons present in the nucleus of that atom. It is often denoted by the symbol \( Z \). The atomic number determines the chemical identity of the element and its position on the periodic table. For example, an atom with 1 proton is hydrogen (atomic number 1), and an atom with 6 protons is carbon (atomic number 6).